JPH072479U - Balloon plate - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the oil agent from staying in the contact area of the traveling yarn on the balloon plate. [Structure] At least a portion where a running yarn comes into contact is formed with a crease 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a balloon plate which is provided between a first heater and a twister in a false twisting machine, a drawing false twisting machine and the like, and which suppresses ballooning of a yarn passing through the first heater and cools it.

[0002]

[Prior art]

 A conventional false twisting machine, a drawing false twisting machine and the like use a stainless steel balloon plate having an inverted V-shaped cross section and a smooth inner wall surface.

[0003]

[Problems to be solved by the device]

 In the above-mentioned balloon plate, the spinning oil agent applied to the yarn adheres to the smooth inner wall surface, accumulates and drip from the downstream end. The spinning oil retained on the inner wall surface increases the coefficient of friction with the thread on the inner wall surface, hinders smooth propagation of twist, and sometimes the thread moves intermittently and suddenly ramps up. This is one of the causes of uneven crimp of the processed yarn. Further, the spinning oil agent staying on the inner wall surface may adhere to the yarn again and stain the yarn. This point is remarkable when the spinning oil agent applied to the yarn is easily condensed.

An object of the present invention is to prevent the oil agent from accumulating in the contact portion of the traveling yarn on the balloon plate.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the balloon plate of the present invention has a crease formed at least in a portion in contact with the running yarn.

[0006]

[Work]

 In the balloon plate configured as described above, the spinning oil agent of the yarn attached to the portion where the traveling yarn comes into contact travels along the score line and flows out downward there, and does not stay in that portion.

[0007]

【Example】

 The balloon plate of the present invention will be described with reference to FIGS.

This balloon plate is used for the balloon plate 4 in the drawing false twisting machine shown in FIG. 1, for example. This draw false twisting machine includes a creel stand 1 on which a yarn supply package 2 in which partially drawn yarns are wound, a first heater 3, a balloon plate 4, a nip twister 5, and a second heater. 6 and a take-up winder 7 forming a package 8 for winding the processed yarn, which is well known (see Japanese Patent Laid-Open No. 62-15341). In this drawing false twisting machine, the yarn Y is false twisted by the nip twister 5 and spreads to the first heater 3. Then, the yarn Y is plasticized and is advanced to the balloon plate 4 to fix the twisted state. Then, when it passes through the nip twister 5, it is untwisted, and crimps are generated in each filament, which makes it bulky. After that, the process proceeds to the second heater 6, the torque is reduced, and the wound package 8 is wound up. Meanwhile, the yarn Y is drawn about 1.2 times for the polyamide yarn and about 1.6 times for the polyester yarn.

The balloon plate 4 is basically the same as the balloon plate used in the conventional false twisting machine, drawing false twisting machine, and the like. For example, the cross section has an inverted V shape and is long. In addition, the central portion is curved downward over the entire length, and approximately 5 convex portions (not shown) on the left and right sides are formed by a press at intervals in the lower groove. . The material is stainless steel, which has good wear resistance, and aluminum, which has good heat conductivity, is unsuitable because it has poor wear resistance.

Since the balloon plate 4 is curved downward as described above and the convex portion is present in the groove, jumping out of the yarn during running for ballooning is prevented.

Further, in the groove below the balloon plate 4, creases 9 are formed by knurling or the like. Examples of the lines 9 include those running in two directions in a grid pattern shown in FIG. 3 (1) and those running in parallel to one direction shown in FIG. 3 (2). Any material that can guide the spinning oil downward can be used. Further, as shown in FIG. 2, the creases 9 need to be provided at least around the apex where the traveling yarn comes into contact, but they may be provided on the entire inner wall surface.

Since the configuration of the balloon plate 4 is as described above, the spinning oil agent of the yarn adhered to the portion of the inner wall surface of the balloon plate 4 where the traveling yarn comes into contact, travels along the score line 9 and flows downward from there. The spinning oil agent does not stay in that portion. Therefore, the twist propagation becomes smooth.

[0013]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects.

That is, since the spinning oil agent of the yarn attached to the portion where the traveling yarn of the balloon plate comes into contact with the yarn flows downward along the line, the twist of the traveling yarn can be smoothly propagated, and the processed yarn can be processed. It is possible to reduce the crimp unevenness. In addition, the spinning oil agent does not adhere to the running yarn again and become contaminated.

[Brief description of drawings]

FIG. 1 is a side view of a drawing false twisting machine.

2 is a perspective view of the balloon plate of the present invention, FIG.
(1) shows the whole and (2) shows the downstream end.

FIG. 3 is a diagram showing each example of a streak formed on the inner wall of the balloon plate.

[Explanation of symbols]

 4 Balloon plate 9 Streaks

Claims (1)

[Scope of utility model registration request] 1. A balloon plate in which lines are formed at least at a portion where the running yarn comes into contact.